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How to Find Phoenix ROM BIOS Versions

To check the true BIOS date on a machine equipped with Phoenix ROM BIOS, do the following:

1.Type the following command at the command prompt and press ENTER: debug
2.Type the following and press ENTER: d F000:FFDC
In most cases, the Debug command displays the following three lines for the Phoenix Technologies ROM BIOS (the example below assumes a date of 08/29/89):

F000:FFD0 <2-byte HEX numbers> 0088
F000:FFE0 <2-byte HEX numbers> //2299//8899
F000:FFF0 <2-byte HEX number> ...<date>

The double-date format is the actual true date for the system ROM BIOS. Bits two and three on line 1 and line 2 are taken from each four-bit number. In the above example, the date would be 08/29/89. The date on the third line is the original release or revision date.

To exit the Debug program, at the dash (-) type q and press ENTER. This returns you to an MS-DOS command prompt.